Ventilator for windows and the like



March 30, 1937 B. N. PARMENTER VENTILATOR FOR WINDOWS AND THE LIKE FiledJune 21, 1934 2 Sheets-Sheet l March 30, 1937,

B. N. PARMENTER VENTILATOR FOR WINDOWS AND THE LIKE Filed June 21, 19342 SheetsSheet 2 Patented Mar. 30, 1937 UNITED STATES PATENT OFFICE2,075,461 VENTILATOR. FOR WINDOWS AND THE LIKE Bert N. Panncnter, LakeForest, Ill.

Application June 21, 1934, Serial No. 731,659

4 Claims.

The present invention relates to ventilators such as those usedinbuilding openings, such as windows and the like, and more particularlyto the louver type thereof.

Among the objects of the invention is to provide a novel ventilator ofthe kind and charac referred to above. 7,

Another object is to provide a novel louver or louver member for theventilator above mentioned.

A further object is to provide a novel means for locking the louverseries in adjacency or contracted condition.

Other objects, capabilities, advantages and features are comprehended bythe invention as will later appear and as are inherently possessed bythe invention. I g

Referring to the drawings? 1 Fig. 1 is a front outside view in elevationof a-' ventilator constructed in accordance with the invention;

Fig. 2 is a fragmentary transverse sectional view of the same with theventilator in collapsed or 4-4 in Fig. 2 of the drawings;

Fig.5 is a fragmentary part sectional and part elevational view of therear side of the ventilator showing the mode of suspension of thelouvers;

Fig. 6 is a detail view of anend portion of a connecting element;

Fig. 7 is a fragmentary and vertical sectional view through the meetingrails of the window sashes and showing the relation of the side guidesfor the ventilator;

Fig. 8 is a fragmentary view of a louver made in telescopic sections forshowing extensibility for different widths of windows;

Fig. 9 is a fragmentary view partly in section of the locking means;and,

Fig. 10 is a top plan view of the locking means and part sectional viewof the lower rail of the sash and taken in a plane represented bylineI'D-.40 in Fig. 2 of the drawings.

Referring more in detail to the drawings, the embodiment selected toillustrate the invention is shown in connection with a window having astool l, a sill 2, frame'sides 3 each having sash channels 4 and 5 withguide strips 6 therebetween, outer guide strips I, and stops 8. In thechannels 5 slides the lower sash having a lower rail 9, upper rail Ill(Fig. 7), glass II and putty l2, while in the channel 4 slides the uppersash comprising lower rail l3, (Fig. 7), glass 14, and putty Theventilator is lower sash and comprises a, series of louvers l6 eachhaving an inclined body part or canopy l1 and an integral upperhorizontal flange part [8, the lower edge of the body part having anintumed or bent back portion l9 to form a strengthening bead at thelower edge of the part II, and the flange part l8 having an inturned orbent back portion 20 to form a channel as later explained and foraffording strength and stillness to the louver.

The upper louver it of the series has at the lower end of the body partIT 8. depending flange 2| having an inturned or bent backportion 22 toform a strengthening bead at the lower edge of the flange 2|. The upperflange l8 has an integral depending flange 23 adapted'to be secured tothe upper part of the rail 9 preferably at the corner 24 thereof by anysuitable securing elements, such as screws 25. Each louver has endportions 26 (Fig. 4) provided with slots or notches 21 for receivingflanges 28 of upright guides or shields 29 locatedin the sash channels 4and having flanges 30 suitably secured to the frame sides 3 by screws3|.

The louvers are so connected together as to be able to be in spacedrelation or in adjacency as the series thereof is extended or expanded,or collapsed or contracted. Each louveris connected to the next louverofthe-series preferably by a pair of connecting members 32, such membersat an end portion of the louvers being shown in Fig. 5, the members atthe other end portion not being shown but it will be understood they arearranged and constructed as those shown but in symmetrically reversedposition. Each member is preferably in the form of a strip of resilientmetal having an upper end portion 33 secured as by rivets-34 to theflange 20 of an upper louver of the series (Fig; 5), and having a lowerend portion 35(Figs. 5 and 6) having a slot 36 for slidably receiving apin or eyelet 31 extending through the flange parts 20 and I8 (Fig. 5),the end portion-35 passing through opening 38 in the flange I8 so thatthe end portion ,35 may be slidably disposed in the channel formedbetweenthe flange parts I8 and 20. It will be apparent that when thelouvers are spaced, as shown in Fig. 5, the end portion 35 has slid inthe channel to the right as viewed in Fig. 5

secured to the rail 9 of the until the end of the slot 36 abuts the pin31 and the member 32 is in an inclined position as shown. When thelouvers are in adjacency (see Fig. 2) the end portion 35 moves to theleft as viewed ,5 in Fig. until the right hand end of the slot 36 isproximate to or even merely abuts the pin 31, in which case the member32 lies flat with and between or in parallelism with the flanges I8 ofthe adjacent louvers. This provides for a very simple means ofsuspension which is automatically adjustable to maintain the louversparallel and horizontal.

The lower end of the flange 28 of the guide members 29, extends intocurved portions 39 and 40 extending partly in the channels 4 (Fig. 4) atthe sides of the window frame. These portions are so curved as toproperly guide the louvers into position when the sash is lowered orclosed and contracted into proper adjacency (Fig- 2), and also are ofsuch width as to shed the rain from entry by the ends of the louvers.The same is true of the flange 28.

In cases when,it is desired to open the sash without using theventilator,'a locking means is provided to maintain the louvers inadjacency (Figs. 2 and 9) whenever the sash is raised and lowered. Anillustrative form of lock shown comprises a tube 4| extending throughthe sash rail 9 (Fig. 2) and'having an extension 42 accessible withinthe room. within the tube is a latch 43 having a stem 44 slidablethrough a head 45. A 1 spring 45 is located in the tube 4| and aroundthe stem 44 and reacts between the latch 43 and the head 45. (Fig. 2).The latch 43 has a 3 'recess 41 having alength slightly greater than thewidth of the flange 20 of the lower louver and having a flat face 48adapted to contact flatwise with the bottom face of the flange 2B of thelower louver. At the end of the recess is pro- 49 vided a projection ortongue 49 adapted to engage the outer edge 50 (Figs. 2'and 9) of theflange 20. The other end ofthe stem 44 has a laterally extending arm 5|to the end of which is secured a handle 52 having a knob 53. The 45 arm5| is capable of moving in a 2 slot 54 (Fig.

10) for locking and unlocking function.

The side .guides 29 may extend upwardly in the channel 4 of the uppersash, the latter being cut away on the outer face of the side rails to50 aflord clearance for the flange 30 (Fig. 4) and also has a groove 55(Fig. '7) for sliding along the flange 28 (Figs. 4 and 7) The louversmay be made in telescope sections for adaptation to windows of diiferentwidths.

55 In Fig. 8 is-shown a louver having sections 56 and 51 connected by acentral section 58 telescopically slidable with the sections 56 and 51.

In assembling, with the upper sash suitably built for receiving the sideguides, the latter are inserted in place and then secured to the sidesof the window frame as shown in the drawings. The louver assembly isthen secured to the lower rail 9 of the lower sash by securing theflange 23 to the corner 24 thereof by the screws 65 25. The lock maythen be set in place in the rail 3 (Fig. 2) after boring a' suitablehole therefor. The end portions 26 of the louvers extend toward the sideguides, with the inclined part in front of or outside of the flange 28,the latter being located in the guide slot 27 (Fig. 4).

i With the ventilator in the position shown in Fig. 2, the lower sashmay be raised and the upper louvers also raised progressively until theseries is extended, such as is shown'in Figs. 1, 3

75 and 5, the lower louver having its canopy H extending over the curvedparts 39 of the side guides (Fig. 3). As the series is extended anupperlouver so pulls on the connecting members 31 as to cause theirslotted ends to slide in the next lower louver of the series until theouter ends of the slots 35'abut the pins 31, at which instant the lowerlouveris lifted. .When the sash is lowered the series contracts untilthe louvers are nested or inadjacency as shown in Fig. 2. Whencontracting the lower ends of the connecting members 32 of an upperlouver so slide in the next lower louver as to bring the inner ends ofthe slots 36 to the pins 31 and dispose the members 32 in parallelismwith the flanges l8 of the louvers.

When it is desired to lock the ventilator so that the sash may be raisedand lowered without using the ventilator, the handle 52 and knob 53 areturned into upright position so as to bring the arm 5| at the end of thelongitudinal part of the slot 54. The spring 48 acts to project thelatch 43 under the flange l8 of the lower louver. The handle 52 and 53is then turned so as to bring the arm 5| into the outer lateral branchof v the slot 54 whereby the latch 43 is turned or rotated to bring theprojection or lip 49 into place outside the edge 50 of the flange part20 of the lower louver (Fig. 9), so as to hook the same. When the sashis raised the louver series in adjacency condition (Fig. 2) is raisedwith the sash. When it is desired to unlock the series, the handle 52and knob .53 are turned or rotated from the outer branch of the slot 54and are pulled with the latch against the spring 46, compressing it, andare then turned into the inner branch of the slot 54. This-releases theprojection or lip 49 from the flange part 20 of the' land 3).

While I have herein disclosedv an illustrative embodiment of theinvention it is to be understood that the invention is not limitedthereto but comprehends other structures, details, ar-

rangements of parts, features and the like without departing from thespirit of the invention.

Having thus disclosed the invention,

I claim:

1. A ventilator for windows and the like, comprising a series of louversbeing so constructed and arranged as .to be held in spaced relation whenextended to permit ventilation and in close adjacency when collapsed,and resilient connecting' members for said louvers, each of saidconnecting members having an end directly secured to a louver of theseries and the other end of said connecting member being directlyslidably connected to the next louver of the series and being soarranged and constructed as to permit relative movement of said louversinto spaced or adjacency relations thereof to the slidable extent ofsaid slidable connection.

2. A ventilator for windows and the like, comprising 'a series oflouvers being so constructed and arranged as to be held in spacedrelation when extended to permit ventilation and in close adjacency whencollapsed, and resilient connecting members located between said louversto support the same, each of said connecting members having an enddirectly secured to a louver of the.

series at a given pointthereof and the other end of said connectingmember being directly slidably connected to the next louver of theseries at a point remote from the point corresponding to the said givenpoint of said above mentioned louver of the series and being so arrangedand constructed as to permit relative movement of said louvers intospaced or adjacency relations thereof to the slidable extent of saidslidable connection. 2

3. A ventilator for windows and the like, comprising a series of louversbeing so constructed and arranged as to be held in spaced relation whenextended to permit ventilation and in close adjacency when collapsed,and flat connecting members being so constructed and arranged as toextend longitudinally between said louvers in parallelism therewith.when in adjacency and inclined thereto when in spaced relation, each ofsaid connecting members having an end fiatwise secured to a louver ofthe series and the other end of said connecting member being slidablyconnected flatwise to the next louver of the 20 series and being soarranged and constructed as to permit relative movement of said louversinto spaced or adjacency relations thereof to the slidable extent ofsaid slidable connection.

4. A ventilator for windows and the like, comprising a series of louversbeing so constructed andarranged as to be held in spaced relation whenextended to permit ventilation and in adjacency when collapsed,connecting members for said louvers'so constructed and arranged as toslidably connect said louvers to permit extension and contraction of theseries means for securing the upper louver of the series to the lowersash rail of a window sash, and a locking means connected to said lowersash rail and so constructed and arranged when in looking position as tohold said louvers in adjacency when the sash is moved and to releasesaid louvers when in non-locking position for extension of the serieswhen the sash is raised.

BERT N. PARMENTER.

